Deuteronomy 17:5-7

Expanded Bible

⁵ take the man or woman who has done the evil thing to the city gates and ·throw stones at [stone] that person until he dies. ⁶ There must be two or three witnesses that it is true before the person is put to death; if there is only one witness, the person should not be put to death [Num. 35:30]. ⁷ The hands of the witnesses must be the first to ·throw stones at [stone] the person, and then everyone else will follow. You must get rid of the evil among you.